Rheutaw



vIsaac L. RHEUTAN,

ENvnLor-MACHINE. f

To all whom t may concern:

Be it known that I, IsAAo L.` RHEUTAN,

' a vcitizen of -theUnited States, residing at Richmond in `the county of Henrico and State of Virginia,-have inventedcertain new` and useful Im rovements in Envelop-Machnes; kand I' o hereby declare the followf ing' to be a full, clear, and exact'description of the invention, such as will enable others itappertains to skilled inthe art to which make and use the same.

My invention consists 1n the-novel features hereinafter described with reference to the accompanying drawings,'in which. I have illustrated the same, andthe said 1nspecification and claims. Referringto thedravvlngs, Figure" 1 `represents valtop 'plan' View ofv an envelop ma! chine showing In'y'i'mprovedr mechanism for applying a transparent patch to an'envelop Window.' Fig. 2 is a front View yof the same, Fig. 3 is an end view. Fig. l isa longi-' tudinalV vertical'sectional View pf. the patch `f conveyer and transparent paper guide. Fig.,`

5 is a top plan view ofthe saine.' Fig. 6 isl a'detail, showing an end viewv of theconveyer and' paper guide and a side view of the papery shears. Figs. 7 and 8 area top plan and en dview respectively of the tilting' plate forminga portion of the transparent l paper guide. Fig- 9 is a view ofthe envelop blank showing? the adhesive applied thereto.

Fig. 10 isa -detail'taken on line 10-10Y of Fig. 1. Fig. 11 is a detail showing the'cam for operating the transparentpaper shears,

My invention v"relates to" mechanism for manufacturing what are known in the trade as outlook envelops?. This style of envelop, which has lately come into extensive use, is. exemplified inthe patent to Calla- ..han', datedJune 10, 1902, No. 7 01,840. This patent discloses anenvelop having anelonf gated` aperture in the body portion thereof .covered with transparentr paper, so that the address upon the inclosure will be exhibited through said transparency and the necessity vof addressing the envelopwill be obviated.

The object ofjmy present .invention `is to.

provide means for a'pplyingjthe/transpar- I'ent patch to the opening ofthe envelop, and' I have-.shown infifthei accompanying drawf ings thel mechanismfembodying my invention, as 'appliedtoanenvelop machine of the well known- Schmilt type'.Y In .this type specification of Letters iraient.

vention is fully disclosed in the following 0F RICHMOND,.VIRGIN-IA, ASSIGNOR '.IOV UNION ENVELOPE COMPANY, 0F RICHMOND, VIRGINIA. 1

intenten Aug. 15, raie.l

Application filed June 12', 1915.` `Serial No. 33,719. 'i

' of envelop machine, the' envelop blank is taken .from the 4pile by the envelop blank gummers and elevated. A carriage'is then moved beneaththe elevated blank and the blank'stripped/ from said gumniers by a r En srnrns .rn'rnn'r onricn.

stripping -plate and deposited on the; carriage which'then conveys the gummed blank to the folding box-,where the envelop isc'omf pleted.' y

'My attachment is designed to apply-.the transparent patch to the'envelopfblank just` after4 it has been lstripped from the gum"-y 'mers by the stripping plate and deposited -on the `carriage and'before the carriage is moved toward thev folding box'.

.adhesive tothe edges ofthe" envelop openfingsimultaneously with the .application of adhesive to the envelop ilaps, means for conveying a previously cuttransparent @patch to proper position over the-envelop window,

engagement with the, adhesive surrounding saidl opening,l and means 4for pressing rsaid transparency upon the same v. simultaneously with the folding of the envelop.

i` In the accompanyingl drawings, I 'have shown only such portions ofv an envelopma chineas are necessary 'fora complete nderstanding of my invention.

1 and 3is the arch or upper frame work of an .envelop machine; 4 is an envelop blank lsupporting or feeding table, which is adapt.

ed to be intermittently elevatedfby. any

suitable means to moveupwardly at predeytermined intervals,- in the usual Way. 5 representsy a pileof envelop blanks sup'- ported by the table Land 6 designates a-re- `ciprocating rod arranged above said blanks and 4carrying flap gummers 7, and a window My improved mechanism for applyingthe transparency comprises means for applying -means for bringing said transparency into Referring to the drawings, 1'1s al portionl of the lower iframe or stand, 2 is ytheitable vss.

or.. opening4 gummer, the latter being after "theyhavev been stripped "from said l gummers by the stripping plate.

An adhesive container-ile; is mounted upon the table 2 and is' divided inta a number of adhesive receptacles fordiierent classes ,of gum, by partitions 16. A gum feedlng roller 17 is klooselymounted in each of said ported by a stationary portion of the upper `frame work above the table 2 and a carriage 19 having a roller 2O is adapted toberecip` rocated on said tracks by rods 21 connected by suitable mechanism (not shown) vto the driving` mechanism. l The operation of the device thus far described, is as follows: The roller 20 receiving adhesive from the rollers 17 is moved toward the right by therods 21 to apply adhesive to the lower vsurfaces of the gummers 7 `and `8, and the rod 6 is then moved downwardly until the gummerscontact with the uppermost blank of the ile5 to apply' adhesive to the ilapsoflsai blank and to the edges of the window opening of the same. The rod 6 is then raised and the gummers carry thetopmost'blank to the stripper plate- 11, where lit is `stripped ,olf and upon thtlffconveyer 12which, asthe blank was elevated has been moved beneath the' same. It is at. this time that the patch ap- ,v

plying mechanism comes into play and this I shall now proceed to describe.

Mounted on an arm 22, standing upon theV table 2 is a roll `23, containing a contmuous strip 24 of transparent paper, which passes between feeding rollsA 25, that are connected for joint movement by the gears 26 and are .zeontiriuously driven by a sprocket chain 27 from the drive shaft 28, said chain passing around gears 29 and 430, one on one of the rolls 25and'one on the drive shaft 28, re-

y spectively. Said strip 24 passes downwardly from the `feed rolls 25 to 'a guide 31, then across to a guide 32, which gives the v stripa half turn so that it will pass to a strip i conveyer 33 in Proper alinement' Mounted in 'standards 34 upon the table 2 A shaft 39 is also are plurality of intermittently operated feeding rolls 35, which are geared for joint t movement by gears 36. The lowerone of the rolls 35 s rigidly mounted upon a spinlll dle `37, whic carries at one end a gear 38.

Qnted upon the table land is provided with` ia rigidly mounted `mutilated gear 4'0 which meshes with the "gear 38 and operates the same. Thesl'iaft 39 is driven by a sprocket chain 41 which fengages a gea-r 42 upon said shaft andV aV t `gear 43 upon a spindle 44 that carries the `lower oneof the feed rolls 25.

w From the foregoing, it will be seen that as the drive shaft 28'moves the sprocket chain `27 and `through it the feed rolls 25 and the spindle 44, the sprocket chain 41-will continuously turn the shaft 39 and its, gear 40.

The mutilated gear will impart an intermittent motion to thegear 38 and through' this.V train of mechanism, the strip 24 of completdi receptacles 15. Tracks 18 are suitably supeposited f Y preven transparent lpaper which is enga ed by the. rolls 35ziyvil1 be fed forward a su cient distance to" nstitute' ,gauel patch', upon each;

cycle of opera fon; Mounted upon supports 45 and extending from. the stripping plate 11 to the interlmittentyfeed rolls 35, are guides 46 in which .the strip"conveyer 33 is mounted forreciproeating* movement-lThe end' of these guides" 46- near the feed rolls 35 is cut away on their under sides to accommodate atilting guide plate 47, 4which isonly connected to said guides by screws 48 located near one end of said plate 47, so that its opposite'end'is capable of-a slight movement vertically.

Attached to one end of the strip conveyer 33 is a link 49 which is pivotally connected to an arm 50, rigidly mounted on a rock shaft 51. A gear 52 upon the rock shaft is oscillated by a rack 53, which slides in bearings 54 and is reciprocated vertically by meansvof a.cam 55 upon` thedrive shaft' 28. A roller 56 uponfthelower end ofthe rack 53"rides upon thecam 55 and iskept in con-y' stant engagement with the same by a spring 57, one of the ends of which engage one 'of the bearings 54 andthe Vother end of which engages a collar 5,8provid'ed upon the rack 53. .From the medhanism just described, it y,

will be lseen that upon eachA revolution of the' drive shaft 28, the conveyer 33 will be reciprocated-once. At this point it may be well to mention that the'upper one of the intermittent feed rollers 35` is not integral from one end to the other, but consistsof two parts 35a and 35b .with a space between them for the passage of the conveyer 33 and these parts 35 and 35" are each mounted upon a link 35 which is pivotally connected at 35'I to the uprights 34, so that the upper roll '35 maybe raised to thread the transparent strip between them. The transparent knife 63 and sever the transparent strip. Each time the knife 6() is raised'it also elevateslt e free end of the tilting plate 47 and `parent strip from curling up or moving out of ahnement. When the knife is lowered,

the tilting plate 47 'drops back into noifnal position and places the uncut transparent #strip in perfect alinement to continue` d nltheL ways 59 in the guidesl'fi.

he conveyer carriles at its free'end a gnppmgzmechanism cemprismg a jaw 64 60 will 'be moved up against a stationary the free end of the 'uncut trans- Y, formingpart of the 'conveyerf and a jaw` '65 fnormally heldont of engagementf'rwith' the piece 70 and opens the' jaw 65 to. release the javv64 by means of a spring pressed bolt. 67 yvhich engages camfaces-68and 69' on said,

Jaw 65. eFormingjpartbf'saidjaw 65 is af' "tai-l piece 47d Which'when the conveyer 33 is moved t'owa'rd the-iight, engages a stop 71 and causes the jaw to berockedjand close f' yan envelop blank, of'means located directly v I transparentpaper-Which has previously beeny beneath the vgumming means vfor, applying La patch tothe yenvelop blank to. coverl said thejaws 64`and v65 to'fen'gage the patch lofy 'cut bythe 'knife 60; Whenthe tailjpiece70 is depressedto close the gripping jaws. the bolt 67 engages'the cam face 69 of the 'jaw 65 and serves -to maintainy the' jawl65 in -its closed position. 4 As the conveyor is moved toward the left and yapproaches its extremel leftrp'osition, a stop (2v which is carriedby the adhesive container 14., engagesthe tail patch offtransparent paper and allor the same to drop into position. upon the previ-A Y. ously gummed Window 10 of' then envelop,

.blank vwhich rests. upon the conveyer l2. `W hen the jaw 65 is opened by the stop 72, itis prevented from accidentally closing, by the bolt 67 engaging' its cam face 68.

In order that, thegummed envelop blank may be held in properposition onthe con-j v i -'envelop blanks, a, reciprocating gummingveyer 12, and that the"transparent patch will properly alineover the envelop Window and be held temporarily in -positionuntilit 4 cated directly beneath they gumming dieyfor arch 3,' fi'om.which theypas's to the stripping platell.A flhe pipe 76jterrninates in an opening in the stripping plate 11 directly n over. the point markedQX, in Fig. 9, ',sothat a blast of air directed on the. spot X will maintain the envelop blank upon the conveyer 12. the edges ofthe strip-ping plate, whei'e the Window glimmer operates'- and these pipes are provided along thoseedges with aseries of ysmall apertures to permit a liiieol air' to be directed on,y thel edges of t'h'e 'transparent patch 'which overlap the edges of the .blank window 10, and thereby cause' said patchto adhere to the envelop blank. After the patch has been applied the conveyer 12 conveys the-blank; to the folding'box, Where the transparency is pressed into rm engage,

foo

ment with the blank andthe envelop folded.

lhat `I claim and desire tos'cure by Letters 1)atent`is: 4 o .i i1. In an envelop machine, the combination `with means for applying gum'to an envelop `v lblank in close proximity to -anV opening in the same, of lmeans located directly beneath 'folding and lpressing means The pipes 77 and 78 pass along,

Fthe gumming means for applying a patch' into the envelop blank to ,cover'the opening,

means for simultaneously folding the blank and pressing the patch upon the same, and' means. for uninterruptedly4 ,feeding the patched blank? from the patch applyingl the blank and 'pressing the patch upon the same, and 'means for feeding the patched A blank from the. 'patch'applying means to the'- the combination 3.v In an envelop machine,

with meansfor applying gum to an envelop blank inA close proximity to an opening Vin vthe' same, of an air blast.' mechanismA for` applying afpatcliv to'the envelopblank to n ie'ans tombe foldingand pressing' means.

vcover the opening, means for'simultaneously 'folding the blank' and pressing the: patch '-upon` the same, and means for `:feeding thel 'patched blank from4 the patch applying 4. In an envelop machine,the.combination of a feeding'table, for .supporting a pile of applying a, patch to the envelopblank, to

cover said opening, meansfor simultaneously [folding the blank4 andV pressing the patch upon the. same,.and means for feeding 'thepatched' blank :from the 'patchvapplying means tothe folding and pressing means.

5. .In lan envelop machine, the combination With a feeding table' Vfor supporting a pile of envelop blanks,"of a stripping plate arranged above said table, a reciprocating gummingdie for applying gumar'ound an "opening, means for simultaneously foldingy k,opening in the uppermost blank in said pile,

the blank'and pressing Ithe patch lupon thevv same, an'd means for -feeding the 'patched l blank from'the patch applying means to the Ifolding and pressing means.

6. Thev combination with gummingy and'l folding an envelop. blank, of' meansfor applying a' patch to the envelop blank to cover an opening ingthe saine,.said 'patch applying means comprising mea-ns for applyinggum" around the renvelop opening,

strip of transparent paper, means for, intermittentlyeeding the paper from'saidjj'oll, meaps/f'for severing said strip into patches of predetermined length, ilieans for conveymechanism for a a support' for a roll containing aucontinuous 55 i* y the blank from the gumming mechanism to y means for applying a patch to the envelop 1 tilting plate each time the knife is recipr hesive surrounding said opening.

' blank to cover an opening inthe same, said patch applying means comprising mechanism for applying gum around the opening in the blank, a support for a roll containing a continuous strip ,of transparent paper, l means for intermittently feeding the paper from the roll, guides into -ivliich' said strip is fed by said feeding means, a tilting plate formingv part of said guides, a conveyor adapted to be reciprocated in said guides, a reciprocating knife pivotally mounted' on said guides and adapted to operate said cated to sever the transparent strip into' patchesof a predetermined length, said conveyerV being adapted to convey a singleer patch into a position over the opening in'4 the envelop blank, andmeans, for bringing said patch into engagement with the ad-4 8.l The combination with mechanism for gumming andfolcling an envelop blank, of means for applying a patch to the envelop blank to cover an opening in the same, said patch applying means comprising mechanism for applying gum around the' opening 1n the blank, a support for a roll containing a continuous strip of ltransparent paper,

' `means for intermittently feeding'the paper `from'the roll, guides into which said strip is fed by said feeding means, a tilting plate forming part of said guides, a conveyor adaptedto be recipi'ocated in said guides, a reciprocatingr knife pivotally mounted on said guides and adapted to operate said tilting plate each `time the knife is reciprocated to sever the transparent sti-ip into patches`4 of a predetermined length, said conveyer being adapted to convey a single patch intoa position over the opening in the envelop blank, and an air blast mechanism for applying a patch to the envelop blank to cover said opening.

9. IThe combination vvith mechanism for gumming an envelop blank around an opening therein, of mechanism for folding the flaps of said blank and means for feeding the fiap folding mechanism, ajfeed table arranged beneathsaido guminng mechanism for supporting a pile of envelop blanks, and mechanism interposed between the guinming mechanism and feed gable for applying a patch to the blank tol coverthe opening therein-While said blank rests directly beneath the gumming means.

l0. A machnejfor making window gnvelo s comprising means forl simultaneously app ying gum to the flaps and around the :opening in an envelop blank, means for folding said blank,means for conveying the blank from the gumming mechanism to the folding mechanism, and means for applying a transparent patch to said blank to cover the opening therein While said blank rests directly beneath the gumming meansyf said patch applying means comprising means for severing a transparent strfp into patches, means for conveying a patch toajj' the envelop blank, and an air blast mechanism for ap lying said patch to cover the" opening in t e blank.

l1. A, machine for making Window` envelops comprising means for simultaneously applying gum to the flaps and aroypid the opening in an envelop blank, means for folding said blank, means for conveying the blank from `the gumniing to the folding mechanism, and nieansfor applying a transparent patch to said blank to cover the opening therein, said patch applying means comprising a support for a roll containing a continuous strip of transparent paper, means for intermittently feeding said strip from said roll,guides for said strip, severing meansfor said strip arrangedin said guides, a patch conveyer for conveying said severed patch from the guides to a position over the opening in the envelop blank, and an air blast mechanism for bringing said patch into engagement with the adhesive surrounding said opening.

12.,A machine for making Window envelops comprising a frame, a feed table for supporting a pile of envelop blanks, a reciprocating gumming die for applying4 gum to the flaps and around an opening in the uppermost blank in said pile, an apertured stripping plate arranged between said feed table and said gumming die, a blank folding mechanism, a conveyerfor conveying the blanks from the guniming to the folding,"

mechanism, means for conveying `a trans- A parent patch to the envelop blank upon said i conveyer, said. stripping plate having air apertures arranged directly above the edgesof the envelop opening and ofthe sealing flap of the blank, and means for forcing a blast of air through said air openings to retain the' blank upon the blank conveyer and bring the transparent patch into engagement with the adhesive surrounding the opening in the blank.

13. A machine for making window envelops comprising a frame, a drive shaft mounted irl said frame and provided with am,

eccentric, means for simultaneously gumming the flaps and applying gum around the opening in an envelop blank, means for folding the blank, means for conveying the blank from the 'gumming to the folding mechanism, a stripping plate vfor stripping `the gummed blank. from 'the gumniing means and depositingthe same' upon the conveyer,` means for bringing a transparent patch into position Ito register over said blanknopening upon said cOnveyer, :said stripping plate having anapertures arranged? directly above `the edges of the en-V velop blank opening, apump provided on 'said fia`me andoperated by said eccentric,

and pipes provided `between said pump said air apertures. lll. A machine for making window' envelops compi'fising means for support-ing a pile of envelop blanks', reciprocating means for simultaneously applying gum" to. the naps and around'an opening in the uppermost blank and' elevating -the same, a confor feeding tliepatclied blank ffioin the patch applying means to tliefolding and pressing nirans.

17. ln an envelop machine, the combination withv means for applying gum toztlie .v eyer adapted. to be moved beneath the gunimed blank when the latter is elevated, meansi'orv stripping s'aidgumnied `blank from the g'uniiners to permit the same to drop ontosaid conveyerymeans rfor ,applying a patch to said blank while it is resting on said conveyor beneath the guminers, and means for simultaneously folding the blank and pressing tliepatcli upon the saine, said conveyer being adapted to carry the blank from `the patch 'applying meansto thefold ing and pressing mechanism.

15. Aimachine for making Window en-V velope-comprising a frame, afee-d table earried by said frame for supporting a pile of. envelop blanks vprovided with openings, gumiiiing mechanism for simultaneously applying gum to the flaps and around the .opening in the ui'iperrnost blank, Said gum mers being arranged above the feed table .and being -mounted in the frame forro# ciprocating movement, folding mechanism also carried by said frame, a blank cony veyer arranged between said 'gummiiig an -foldiiig mecliaiiisins,' a. support for 'a roll of transparent paiieincontaining a` continuous strip carricil'by said frame, intermittently operated Vleed rollersand guides `toil said strip mounted' upon said iranie, a. knife determined length p ivotally mounted on said guides and provided with a roller, a cani engaging Isaid knile roller for operating said/"knife, a coiive 'cr for conveying av patch flaps of an envelop blank, of means for apply ing giini to said blank in close proximity to an opening in the saine simultaneously ivitli the giiinining o i the Iiiap, means forV applying a patch'to the, envelop blank'to cover said opening, while said blank rests directly beneath'tlie 0uniining mechanism, means for simultaneously folding the blank and pressing the: patchupon the saine, and means ior feeding the patched blank from the patch applying means to the folding and pressing means. 1S. ln an envelop die for applying' gum to the uppern'iost blank in saidpile, in close kproximity to an Opening in the saine, means for applying a.

`'patch to `the envelop blank to coveisaid opening ivliile the blank rests beneath said gun'iniing die, 'means lor `simultaneously `folding the blank and pressing the patch upon the saine, and means for feeding the patched blank from the .patch applying means-to the folding' and pressingineans.

'for shearing Said strip into patches of preto/a position over the envelop blank opening,` and means for applying the patch to the blank to cover saiil-oi'iening.

16. In an envelop inaehineLthe combina- 19. A n envelop machine comprising means forI applying gum around an opening in an envelop blank, means for. simultaneously. folding tlie blank and pressing a` patch upon the. saine, means for conveying saifl blank from the. guniining means to. the folding and pressing means, and means for applying a patch to the envelop blank to cover the giiiniiiing ineans.

,ln testimony wliereoi" l allix niy 'signature, in the presence oi" tivo ivitiiessesfs:A

ISAACl L. RUEUTAN. Witnesses: y

R. A. MANN,4 w 'l. CoMoLi.`

'inacl'iine, v the coiiibina'-, x 'tion of a` leeding table, ior supporting a. pile vof envelop blanks, a. ieciproating guininiiig opening in the saine vvliile said blank rests on the conveying iiieans directly beneath the 

